Almost 45 years after it formed, and at least a few decades beyond its commercial peak, a Roth-fronted Van Halen finally performed on national TV. Returning to support its new live album, &quot;Tokyo Dome Live in Concert,&quot; and a recently announced summer tour, the band tore through a handful of its classics as the musical guest on &quot;Jimmy Kimmel Live&quot; on Monday night (3/30/15).